PubIDPubID
GB

GB

Chinese National Standards (Guobiao)

GB standards are China's national standards (Guobiao), issued by SAC (Standardization Administration of China). The prefix encodes the issuing body — GB (national), GB/T (recommended), GB/Z (guideline), GBn (formerly-prescribed internal), plus industry codes such as JB (machinery), HB (aviation), and social-group codes (T/{ORG}).

NationalSyntax Chinese standards follow: {Body}[/{Mandate}] {Number}[-{Part}]:-{Year}. The mandate letter after the slash states the legal force: T = recommended (推荐), Z = guideline (指导), none = mandatory (强制性). Social-group standards print the organization after T/ (T/GZAEPI 1-2020). Chinese typography uses an em-dash before the year (—2010); the ASCII hyphen is accepted. Website →
3
Doc Types
5
Components
2
Relations
0
Stages

Document Types 3

National Standard

GB▼

Industry Standard

JB▼

Social Group Standard

T/{ORG}▼

Components 5

Structured elements that make up a GB identifier:

Issuing Body
Enumeration

The body code as printed: GB, JB, GBn, T/{ORG}…

GBGB/TGB/ZGBnJBHBT/{ORG}
Part of the identity — the series distinguishes two documents with one number
e.g.GB/T
:publisher
Mandate
Enumeration

Legal force letter carried after the slash

T (recommended)Z (guideline)— (mandatory)
e.g.T
:mandate
Number
String

Document number, possibly dotted with a part (5606.1)

e.g.20223
:number
Part
String

Part number, split from a dotted number on parse

e.g.1
:part
Year
Year

Approval year, after an em-dash or hyphen

e.g.2006
:year

PubID Algebra 2

Relationships between GB identifiers:

RelationDescriptionSyntaxExample
All PartsA reference to every part of a multi-part standardGB/T [Number] (all parts)GB/T 5606 (all parts)
PartA part of a multi-part standardGB/T [Number].[Part]-[Year]GB/T 5606.1-2004